In New York for 8 nights so didn't use all the tickets.Very useful for jumping queues except for Natural history museum where we were sent to the back where there was about an hour's worth of waiting.
PLUS: you can save lots of money, you can see really cool attractions, if you are lucky you can use the OR-tickets for both (sometimes they don't check) | MINUS: expected more lines to skip (time savings were not like expected, sometimes ticket has to be exchanged at same ticket booths like normal customers) | RESULT: I can recommend it, it makes the trip planning much easier!
Picking up our tickets worked well but joining the front of the queues did not work at all